Carrier 58HDV installation instructions Thermostat Wiring Guide

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Thermostat Wiring Guide

1.These diagrams are for reference. See thermostat wiring instructions for specific terminal assignments, connections or operation.

2.Humidifier/humidistat is optional and not included with the furnace.

3.Dehumidify feature requires thermostat with DEHUM feature or a separate dehumidistat to get the dehumidification operation. Dehumidistat is optional and not included with the furnace.

4.Underlined terminal indicates intended use for multiple function terminals.

5.TSIB terminals only available on 58HDV/359BAV models.

6.Two-stage Air Conditioning or two-stage Heat Pump compatible.

7.W2 furnace operation is from furnace control algorithm SW1 DIP switch #3 (TT) set to OFF. Furnace runs in Low Heat for 12 minutes then switches to High Heat if heating call still exists.

8.24V HUM terminal on furnace control is used to power a humidifier (on call for heat and pressure switch closed) if no HUM thermostat option is available.

9.DEHUM provides a 20% reduction in airflow (when Y1 or Y1 + Y2 is energized) when the furnace control DEHUM terminal is energized with 24V.

10.If no DEHUM thermostat option is available, a dehumidistat that has closed contacts on a call for dehumidify may be used

11.O provides a 10% reduction in airflow when Y1 or Y1 + Y2 is energized and O is NOT energized. (J2 jumper on TSIB must be in HP COMFORT position to get this function. AC/HP EFFICIENCY position results in no reduction of airflow for Y1 or Y1 + Y2 calls regardless of O being energized or not.)

12.For Heat Pump/Furnace systems, refer to Fossil Fuel Kit or Dual Fuel Thermostat Installation Instructions for wiring.

58HDV

	TSIB NOTE 5
NO CONNECTION
NO CONNECTION		Y1


NO CONNECTION		O
NO CONNECTION		NOTE 11

	TWO-STAGE or VS
		FURNACE
	SINGLE-STAGE	CONTROL
	SINGLE-STAGE
	THERMOSTAT	W2
		W2
		NOTE 7	SINGLE-STAGE
	W	W1	SINGLE-STAGE
	W	W1	AIR CONDITIONER
	Y	Y/Y2	Y
	G	G
	R	R
	DEHUM NOTE 3, 9, 10	DEHUM
	C	COM	C
	HUM	24V HUM
	HUM
			OPTIONAL
			HUMIDIFIER
			24V in
			COM
			NOTE 2

A07787

Fig. 56 - HUM and DEHUM Terminal available from Thermostat. Humidifier Wiring Models and Dehumidify Wiring

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Contents Installation Instructions Required Notice for Massachusetts Installations CUT Hazard Furnace Reliability HazardFIRE, EXPLOSION, and Asphyxiation Hazard Winter Shutdown Frozen Water Pipe HazardWater Damage to Property Hazard Installation Requirements Installation PositionsLocation and Clearances Carbon Monoxide Poisoning HazardHorizontal Furnace Installation Furnace Installation ConsiderationsCondensate Trap and Drain Lines LevelingDimensions and Clearances Knock Outs Air Openings and Connecting DuctsOutdoor Combustion Air Method Requirements Confined Space InstallationIndoor Combustion Air Unconfined Space Venting and Combustion Air Check Ventilation AirMake the Following Check Dual Certified Direct or Non- Direct Vent For Two Pipe Installation Direct VentContaminated Combustion Air Sizing Combustion Air and Vent Pipe Combustion Air and Vent Piping Insulation GuidelinesSingle Piping only Vent Termination ClearancesDirect Vent Termination Clearance Other than Direct Vent Termination Clearance Frozen and Burst Water Pipe Hazard Condensate Drain TrapOnly Upflow Installations Top Vent See FigSide View Upflow Installations Vent through Left-Side See FigPVC All Models Vent through Right-Side See FigExhaust Downflow Left-Side Vent and Trap See FigDownflow Right-Side Vent and Trap Downflow Right-Side Vent and Trap See FigExhaust Horizontal Left through Top See FigInlet Horizontal Left-Side Vent See FigHorizontal Right through Top Horizontal Right through Top See FigExhaust Horizontal Right-Side Vent See FigCombustion Air Pipe Connection Direct Vent Connecting Vent and Combustion Air PipingVent Pipe Connection Joining Pipe and Fittings Connecting Vent Pipes and TerminationHorizontal Termination Vertical Termination Using Exterior RisersVent Termination Shielding Multi Vent Termination ClearancesConcentric Vent and Combustion-Air Vertical & Horizontal Termination Concentric Vent TerminationCarbon Monoxide POISONING, Fire and Explosion Hazard 40,000, 50,000, 60,000, & 75,000 Btuh Furnaces Gas Supply Requirements Gas Piping RequirementsFire and Explosion Hazard Fire HazardTypical Gas Piping for Upflow Electrical Operation HazardPropane Conversion High Altitude Air Pressure SwitchGeneral Derating Rules Additional Propane Connection RequirementsElectrical SHOCK, Fire or Explosion Hazard Changing Orifices for High AltitudeFinal Gas Piping Check Power Supply WiringJunction Box J- Box Relocation Thermostat HeatingOptional Equipment CoolingFurnace Control Fuse Tap Select Interface BoardConnections InstallationSizing InsulationFilters Filter Installation using Filter RackAddition Of Air Conditioning Subbase for Combustible Floor Combustible Floor InstallationStartup Manifold Gas Pressure AdjustmentsGas Supply Pressure Natural Gas Input Rating Check Temperature Rise CheckMain Burner Flame Check Continuous- Fan using G Blower AdjustmentsHard Wired Continuous Fan Operation Changing Blower SpeedOn = OFF = High Cooling Y1 & Y/Y2 or Y/Y2 Request Low Cooling Y1 RequestContinuous Circulating Fan G Request Heating Request with Gas Shut Off Furnace Control Board Diagnostic Codes See FigWiring Diagram Thermostat Wiring Guide No Connection SINGLE-STAGE Thermostat TWO-STAGE Catalog No 58HDV---01SI